sessionist.tmux

#!/usr/bin/env bash

CURRENT_DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"

default_key_bindings_goto="g"
tmux_option_goto="@sessionist-goto"

default_key_bindings_alternate="S"
tmux_option_alternate="@sessionist-alternate"

default_key_bindings_new="C"
tmux_option_new="@sessionist-new"

default_key_bindings_promote_pane="@"
tmux_option_promote_pane="@sessionist-promote-pane"

default_key_bindings_promote_window="C-@"
tmux_option_promote_window="@sessionist-promote-window"

default_key_bindings_join_pane="t"
tmux_option_join_pane="@sessionist-join-pane"

default_key_bindings_kill_session="X"
tmux_option_kill_session="@sessionist-kill-session"

source "$CURRENT_DIR/scripts/helpers.sh"

# Multiple bindings can be set. Default binding is "g".
set_goto_session_bindings() {
	local key_bindings=$(get_tmux_option "$tmux_option_goto" "$default_key_bindings_goto")
	local key
	for key in $key_bindings; do
		tmux bind "$key" run "$CURRENT_DIR/scripts/goto_session.sh"
	done
}

set_alternate_session_binding() {
	local key_bindings=$(get_tmux_option "$tmux_option_alternate" "$default_key_bindings_alternate")
	local key
	for key in $key_bindings; do
		# switch to the last/alternate session
		tmux bind "$key" switch-client -l
	done
}

# Prompt for creating a new session. If the session with the same name exists,
# it will switch to existing session.
set_new_session_binding() {
	local key_bindings=$(get_tmux_option "$tmux_option_new" "$default_key_bindings_new")
	local key
	for key in $key_bindings; do
		tmux bind "$key" run "$CURRENT_DIR/scripts/new_session_prompt.sh"
	done
}

# "Promote" the current pane to a new session
set_promote_pane_binding() {
	local key_bindings=$(get_tmux_option "$tmux_option_promote_pane" "$default_key_bindings_promote_pane")
	local key
	for key in $key_bindings; do
		tmux bind "$key" run "$CURRENT_DIR/scripts/promote_pane.sh '#{session_name}' '#{pane_id}' '#{pane_current_path}'"
	done
}

# "Promote" the current window to a new session
set_promote_window_binding() {
	local key_bindings=$(get_tmux_option "$tmux_option_promote_window" "$default_key_bindings_promote_window")
	local key
	for key in $key_bindings; do
		tmux bind "$key" run "$CURRENT_DIR/scripts/promote_window.sh '#{session_name}' '#{window_id}' '#{window_name}' '#{pane_current_path}'"
	done
}

set_join_pane_secondary_bindings() {
	local secondary_key_table="$1"
	local break_pane_flag="$2"

	while read -r key flag; do
		tmux bind-key -T"$secondary_key_table" "$key" run \
			"'$CURRENT_DIR/scripts/join_pane.sh' '$secondary_key_table' '$break_pane_flag' '$flag'"
	done <<KEY_FLAGS
h -h
% -h
| -h
v -v
" -v
- -v
f $break_pane_flag
@ $break_pane_flag
KEY_FLAGS
}

# "Join" the marked pane to the current session/window
set_join_pane_binding() {
	local key_bindings="$(get_tmux_option "$tmux_option_join_pane" "$default_key_bindings_join_pane")"
	local key
	local secondary_key_table="join-pane"
	local break_pane_flag="-b"
	set_join_pane_secondary_bindings "$secondary_key_table" "$break_pane_flag"
	for key in "$key_bindings"; do
		tmux bind "$key" run "$CURRENT_DIR/scripts/join_pane.sh '$secondary_key_table' '$break_pane_flag'"
	done
}

set_kill_session_binding() {
	local key_bindings=$(get_tmux_option "$tmux_option_kill_session" "$default_key_bindings_kill_session")
	local key
	for key in $key_bindings; do
		tmux bind "$key" run "$CURRENT_DIR/scripts/kill_session_prompt.sh '#{session_name}' '#{session_id}'"
	done
}

main() {
	set_goto_session_bindings
	set_alternate_session_binding
	set_new_session_binding
	set_promote_pane_binding
	set_promote_window_binding
	set_join_pane_binding
	set_kill_session_binding
}
main